CrystalClear RapiClear Liquid Flocculent - Pond Water Clarifier - 1 Gallon Treats Up to 64,000 Gallons

Out of all the products I've tried, this is the only truly safe for all life pond clarifier that works fast. It'll clear the worst floating algae bloom without killing your snails, clams, shrimp, crawfish, or anything else you might have living in your pond. I spent a long time and lost a lot of expensive big snails trying other solutions in the past, this flocculant is aluminum based and far less toxic than copper algaecide alternatives. I combine this treatment with Nitrate lowering bacteria and barley extract to keep my water clean. Without other treatments to lower the free nutrients and hinder algae growth this product wont keep water clear for long, but it definitely does a great job handling green, cloudy water SAFELY. My pond contains snails, scuds, plants, koi, mosquito fish, goldfish, and the odd frog here and there. None are harmed by this product when dosed correctly.

I had an algae bloom in my fish pond during the summer. I tried a number of treatments that were no where near as goos as RapidClear. As it says, it is safe for the fish and it attaches to the algae, then sinks to the bottom. The rest is crystal clear water. A shop vac or filter can get it what's on the bottom. No fish fatalities. Another thing did was to include some limestone in my water feature. Limestone is a simple, natural, way to filter the water.

Unbelievably, this product actually created algae on our water fountain! I usually purchase the algicide from FOUNTEC, but it was out of stock for over a month so I tried this in its absence. For the first time in three years, we actually saw algae growth build up, and it turned into a chalky white debris upon drying. Take a look at the photos I’ve shared. Granted, the algae may not have actually spawned because of this product like I joked earlier, but it clearly did not keep it away in the absence of the other product. That said, not only did it make a mess with the dried white residue, which I now have to scrub clean and then repaint over, it absolutely does not work! Stay away from this stuff!!

I was thrilled with this. It cleared the pond up after three days. I purchased another gallon a couple months later and it has not yet showed any progress yet.

Worked as expected - fish healthy

I was tired of not being able to see my fish after weeks of heavy rain then extremely sunny Days. My water was a dark green and I added beneficial bacteria , I did water changes often and I’m a responsible koi keeper so I was testing my water parameters . The water test were good but I still couldn’t see my loves. So I read the reviews and watched some YouTube videos before trying this product. Because I’m very careful when adding anything to my pond I don’t want to mess up my ecosystem and bother my fish. I increased the oxygen in the pond first, took a bucket of the ugly green water from the pond and mixed the right amount for my pond size of rapiclear in with the water and slowly added it to my pond to make sure my koi were okay with the product. They didn’t like it much at first , I think it may have irritated them a bit. They got over that fast and the first day I really didn’t notice a difference. But by day 3 I could see my babies and everyday since it seems to get a bit clearer. I would definitely recommend this but I would also advise to follow the instructions and increase your oxygen. Don’t just go pouring anything in your pond. Good luck and thanks for reading my review I hope it helps you

The product was good, but we didn't use enough to make a difference.

My pond decided to get all cloudy in August. We couldn’t see but a couple inches into the water. I put 2 ounces (1/4 cup) of this in and three days later it’s clear all the way to the bottom, 4’. Give it time and don’t over use the product. I have Trout and snails in my pond and neither showed any reaction to this product. Highly recommend.